fraudulenter
From LSJ
ἐν ταῖς ἀνάγκαις χρημάτων κρείττων φίλος → it is better in times of need to have friends rather than money, a friend in need is a friend indeed (Menander, Sententiae monostichoi 143)
Latin > English (Lewis & Short)
fraudŭlenter: adv., v. fraudulentus. >
Latin > French (Gaffiot 2016)
fraudŭlentĕr,¹⁶ frauduleusement : Cat. d. Non. 510, 21 ; Col. Rust. 1, 8, 18 || -tius Plin. 30, 89.